Quis Math : - Universityku

– hasil dari a+1/4 – a-1/3 adalah..
A. a+7/12
B. a-1/12
C. 7-a/12
D. -1-a/12

NB: PAKAI CARA YAA SAMA JAWABAN

Quis Math :

a + 1 / 4 – a – 1 / 3

= a + 1 / 4 x 3 – a – 1 / 3 x 4

= 3a + 3 / 12 – 4a – 4 / 12

= ( 3a – 4a ) ( 4 + 3 ) / 12

$sf frac{a + 1}{4} - frac{a - 1}{3}$

$sf = ( frac{a + 1}{4} times frac{3}{3} ) - ( frac{a - 1}{3} times frac{4}{4} )$

$sf = frac{3a + 3}{12} - frac{4a - 4}{12}$

$sf = frac{3a + 3 - (4a - 4)}{12}$

$sf = frac{3a + 3 - 4a + 4}{12}$

$sf = frac{ - a + 7}{12}$

$boxed{sf = frac{ 7 - a}{12} } to : opsi : : c$